A bag contains 4 g r e e n marbles, 8 b l a c k marbles, and 7 b l u e marbles. If a marble is drawn from the bag, replaced, and another marble is drawn, what is the probability of drawing first a g r e e n marble and then a b l u e marble

Step-by-step explanation:

Given

Required

Determine the probability of selecting green then blue marble

This probability is represented as:

And it is calculated using:

Total marble is:

So, we have:

-- approximated

Hence, the required probability is approximately 0.0776

ab will be equal to

2.56 is the width of the garden

step-by-step explanation: